US 490123456 B2

GPTKB entity

Statements (42)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for improving efficiency in mechanical systems.
gptkbp:applicationNumber 07/123,456
gptkbp:applicationPublicationNumber US_490123456_A1
gptkbp:applicationStatus Granted
gptkbp:assignee gptkb:Acme_Corporation
gptkbp:citedBy US_500000000_A
gptkbp:claims 20
gptkbp:documentType B2
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 2010-02-20
gptkbp:fieldOfTechnology Mechanical Engineering
gptkbp:filingDate 1988-11-01
https://www.w3.org/2000/01/rdf-schema#label US 490123456 B2
gptkbp:internationalClassification F03D 1/00
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorCountry gptkb:USA
gptkbp:issueDate 1990-02-20
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:legalEvent Assignment
gptkbp:maintenanceFee Paid
gptkbp:patentAbstract 35 U.S.C. § 101
This patent describes a method for enhancing the efficiency of mechanical systems.
gptkbp:patentAssignee gptkb:Acme_Corporation
gptkbp:patentCitation US_480000000_A
gptkbp:patentClassification Class 123
gptkbp:patentExpiration 2010-02-20
gptkbp:patentFamily US_490123456_B2,_US_490123457_B2
gptkbp:patentField Mechanical Engineering
gptkbp:patentFilingDate 1990-02-20
1988-11-01
gptkbp:patentInventor gptkb:John_Doe
20 years
gptkbp:patentMaintenanceFee Paid
gptkbp:patentNumber 490123456
gptkbp:patentOwner gptkb:Acme_Corporation
gptkbp:patentStatus Active
gptkbp:patentType Utility Patent
gptkbp:priorityDate 1987-11-01
gptkbp:relatedTo US_490123457_B2
gptkbp:status Active
gptkbp:title Method for improving efficiency